'Rapidly evolving day': bushfires spark emergencies

Wild winds and warm weather have fanned several bushfires in Tasmania, prompting emergency evacuation warnings.

An evacuation warning for Glenlusk, a rural area on the outskirts of Hobart, was issued before 2pm on Thursday before it was downgraded in the early evening.

Aircraft were grounded for a period during the afternoon due to high winds, which have reached gusts as high as 85km/h in the state's capital.

"We've had a rapidly evolving day with fire forecasts exceeding what was predicted," regional fire commander Simon Pilkington told reporters.

An emergency warning was in place for an out-of-control bushfire at the small rural settlement of Levendale, about 50km north of Hobart, which was also downgraded in the evening.

Another emergency warning, urging residents to take shelter, was issued for Dolphin Sands on the east coast, an area which lost homes in a 2023 bushfire.

Dolphin Sands was the main concern, Mr Pilkington said.

Mr Pilkington was unable to confirm whether any homes or structures had been lost in any of the fires.

"There is expected to be thick smoke, and showers of embers which may cause fires all around you," the fire service warning said.

"Spot fires may threaten your home before the main fire arrives. Conditions are expected to be changeable."

Almost 80 fire crews were battling the blazes late on Thursday afternoon, with reinforcements on the way from the north, Mr Pilkington said.

"We're hoping the winds will abate towards the evening and we'll see a lull," he said.